28912140

素因数分解:

$2^2\times 3^7\times 5^1\times {\mathrm{661}}^1$

素因数の和:691

約数の個数: 96

約数和(自身を含む): 91197120

約数和(自身を除く): 62284980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 661, 729, 810, 972, 1215, 1322, 1458, 1620, 1983, 2187, 2430, 2644, 2916, 3305, 3645, 3966, 4374, 4860, 5949, 6610, 7290, 7932, 8748, 9915, 10935, 11898, 13220, 14580, 17847, 19830, 21870, 23796, 29745, 35694, 39660, 43740, 53541, 59490, 71388, 89235, 107082, 118980, 160623, 178470, 214164, 267705, 321246, 356940, 481869, 535410, 642492, 803115, 963738, 1070820, 1445607, 1606230, 1927476, 2409345, 2891214, 3212460, 4818690, 5782428, 7228035, 9637380, 14456070, 28912140]

約数ペア:

[(1, 28912140), (2, 14456070), (3, 9637380), (4, 7228035), (5, 5782428), (6, 4818690), (9, 3212460), (10, 2891214), (12, 2409345), (15, 1927476), (18, 1606230), (20, 1445607), (27, 1070820), (30, 963738), (36, 803115), (45, 642492), (54, 535410), (60, 481869), (81, 356940), (90, 321246), (108, 267705), (135, 214164), (162, 178470), (180, 160623), (243, 118980), (270, 107082), (324, 89235), (405, 71388), (486, 59490), (540, 53541), (661, 43740), (729, 39660), (810, 35694), (972, 29745), (1215, 23796), (1322, 21870), (1458, 19830), (1620, 17847), (1983, 14580), (2187, 13220), (2430, 11898), (2644, 10935), (2916, 9915), (3305, 8748), (3645, 7932), (3966, 7290), (4374, 6610), (4860, 5949)]